fix: linux taskbar ikonu (gtk default icon + hicolor tema indeksi + StartupWMClass), windows .ico yenilendi, .deb guncellendi

linux/CMakeLists.txt

@@ -121,6 +121,12 @@ install(CODE "
 install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
   DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)
 
+# Bundle the application icon so the runner can set the window icon at runtime.
+install(FILES "${PROJECT_SOURCE_DIR}/../imajviewericon.png"
+        DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+        RENAME "imajviewer.png"
+        COMPONENT Runtime)
+
 # Install the AOT library on non-Debug builds only.
 if(NOT CMAKE_BUILD_TYPE MATCHES "Debug")
   install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"